1. Introduction
In recent years, China’s economy has continued to develop rapidly, but due to the irrational use of resources in traditional economic methods, serious damage to the ecological environment has been caused. In the face of the contradiction between production development and environmental protection, environmental regulation has become the only means of sustainable development. The growing concern about environmental destruction and pollution, coupled with increasing greenhouse gas emissions, has led to the adoption of various policies aimed at achieving a green environment [
1]. In 2020, China proposed to reach carbon peaks by 2030 and achieve carbon neutrality by 2060. Enterprises play an important role in reducing carbon emissions. The intensity and severe impact of carbon emissions on the environment have been witnessed globally [
2], and the green development of enterprises has become an inevitable trend. The high-tech industry has the characteristics of high added value and high technical content and has become the fastest-growing industry in China. According to the data of the Statistical Communiqué on National Economic and Social Development in 2021, the added value of high-tech manufacturing in the whole year increased by 18.2% over last year, and the investment in high-tech industries increased by 17.1% over the previous year. However, high-tech industries also produce a large amount of pollution in the production process, mainly manifested in the “three wastes” such as wastewater, waste gas, and solid waste [
3]. In addition, some polluting processes in the production process of high-tech products are involved in the industrial chain [
4]. High-quality economic development inevitably requires high-tech industries to minimize environmental damage, and following the concept of green development to improve the intensity of environmental regulations gradually is an urgent need for the high-quality development of China’s economy [
5]. The importance of high-tech industries and the necessity of environmental regulations have made high-tech industries pay more attention to generating profits and improving international competitiveness while controlling pollution generated in the process of production and operation.
Since the concept of environmental regulation was proposed, many studies have followed. One of the earliest and more representative views is the Porter hypothesis [
6]: environmental regulation can stimulate technological innovation and promote competitiveness, but this hypothesis has not been unanimously recognized. Despite the skepticism of this optimistic view and the lack of consistent conclusions, the Porter hypothesis has led to a re-examination of the relationship between the environment and the economy [
7]. The definition of international competitiveness dates back to the late 1970s when Porter [
8] completed his work
The Competition Trilogy, explained the formation process and evolution of competitiveness, and laid the theoretical foundation for the formation of modern competition theory. In recent years, the Chinese government has attached great importance to environmental protection, and research on environmental regulations in different industries has become a hot topic. On the one hand, high-tech industries are facing external pressures from environmental regulation-related policies and internal pressures of industrial transformation, and on the other hand, they are also facing the direct or indirect, positive or negative impacts that environmental regulations may have on high-tech industries, and environmental regulations occupy an increasingly important position in influencing the competitiveness of high-tech industries. Technological innovation is not only a driving force for economic growth but also an important driving force for solving long-term environmental problems to achieve sustainable development. For the technological innovation and competitiveness of industries, whether the role of environmental regulation is to promote or inhibit has always been a hot issue in the academic community.
Among the existing literature, there is more literature on the relationship between environmental regulation and industrial export competitiveness, whether environmental regulations inhibit export competitiveness [
9,
10] or whether the strengthening of environmental regulations will promote the competitiveness of industrial exports [
11,
12,
13]. However, most of the existing literature focuses on the relationship between environmental regulation and the competitiveness of general industries, less research on environmental regulation and the international competitiveness of high-tech industries is carried out, so it can be said that there is still sufficient room for expansion in research on the relationship between environmental regulation and the international competitiveness of high-tech industries. Examining the relationship between environmental regulation and the international competitiveness of high-tech industries can greatly enrich relevant theoretical achievements and provide guidance for the international development of high-tech industries. To ensure the availability of data and the consistency of statistical caliber, this paper takes the relevant data of the high-tech industry in 30 provinces and cities in China (excluding Tibet, Hong Kong, Macao, and Taiwan) from 2007 to 2016 as a sample, to study the impact of different environmental regulations on its international competitiveness, and to introduce enterprises’ R&D investment as a moderating variable. The research attempts to answer the following questions. Will China’s increased environmental regulations reduce the international competitiveness of high-tech industries? Will the type and severity of environmental regulations affect technological innovation? Does R&D investment have a moderating effect? This issue has not been adequately studied in the available literature. This research will enrich the relevant research on environmental regulation, R&D investment, and international competitiveness of high-tech industries from concepts and theories, supplement the existing research results, and put forward reference suggestions for the development of China’s high-tech industries, formulation and implementation of environmental regulation policies, so as to help the development of China’s high-tech industries and improve international competitiveness. This paper also explores the moderating role of R&D investment on the impact of environmental regulation and industrial competitiveness, making the mechanism of environmental regulation clearer. However, due to the availability of data, there are still deficiencies in sample and data selection, which also points the way for future in-depth research.
Lastly, the remaining part of the study is divided as follows.
Section 2 is a literature review and theoretical analysis.
Section 3 explicates variable descriptions, data selection, and model settings, and
Section 4 discusses empirical findings. Finally,
Section 5 provides a conclusion and policy implications.
2. Literature Review and Theoretical Analysis
According to the available literature, there are two main views on the relationship between environmental regulation and technological innovation of enterprises: environmental regulation may have a positive or negative impact on the technological innovation of enterprises. Many scholars believe that regulation increases the burden on enterprises and, thus, inhibits technological innovation. Gray et al. [
14] conducted an empirical study of 166 companies in the U.S. paper industry and found that strict regulations lead to more investment in energy conservation and emission reduction, resulting in no effective improvement in production technology. Bel et al. [
15] argued that for 27 European countries, environmental regulations inhibit technological innovation. Yang et al. [
16] found that only one of them has a positive effect on R&D investment in Vietnamese and Malaysian companies by taking two specific environmental regulations in the European Union as examples. Pitelis et al. [
17] studied the impact of these three types of tools on innovation activities in the power industry by dividing renewable energy policy into demand-driven, technology-driven, and systemic policy tools and found that systematic tools have a restraining effect, demand-driven tools have a catalytic effect, and technology-driven tools have little impact. There are also empirical analyses that have not found that the government’s environmental supervision and inspection activities have a significant impact on technological innovation [
18].
In recent years, the studies of China have also gradually been enriched. Tang et al. [
19] analyzed the data of 496 A-share industrial enterprises in China from 2002 to 2017 and found that the “Eleventh Five-Year Plan” environmental regulations have a negative impact on the innovation efficiency of enterprises in the short term. Liu et al. [
20] found that inappropriate regulations can reduce the marginal efficiency of green technology innovation when analyzing an economic zone in the Yangtze River Basin. Wang et al. [
21] conducted a study of six carbon trading pilot areas in China, and the results show that the impact of emissions trading on technological innovation is regionally different and may also produce different results due to different types of regulations or types of technological innovation. Li et al. [
22] found that environmental regulations have a non-linear effect on the efficiency of investment in technological innovation but not on their conversion efficiency.
Technological innovation is mainly measured by three types of indicators: R&D investment, patents, and innovation efficiency [
23]. Since R&D investment largely determines the innovation ability of industries, based on the existing research literature and research results, Hypothesis 1 is proposed.
Hypothesis 1. Environmental regulation (ER) is negatively correlated with R&D investment.
Research on the relationship between environmental regulation and firm competitiveness indicates that environmental regulation may enhance, inhibit, or have a less effective effect on firm competitiveness. Many scholars believe that environmental regulation will have a negative impact on the competitiveness of enterprises [
24,
25,
26,
27,
28], such as Jeffe [
29], who believes that environmental regulation will bring social and ecological benefits, but at the same time, will also increase the cost of enterprises, resulting in disadvantages such as lower productivity and lower competitiveness. Kneller and Manderson [
30] argue that environmental regulations reduce the competitiveness of firms because the total cost of pollution control increases the total costs to the firm, resulting in a decrease in the R&D investment of the company. This, in turn, reduces the competitiveness of the enterprise. Sun et al. [
31] examined the interaction between trade and an environmental pollution proxy of carbon dioxide (CO
2) for 49 high-emission countries in Belt and Road regions over the period of 1991–2014 and indicated the existence of an inverted U-form relationship between trade and carbon emissions. For Chinese industrial enterprises, scholars have conducted a series of empirical tests from different perspectives. Hu and Wang [
32] used Chinese inter-provincial panel data for spatial metrology analysis and found that environmental regulations not only inhibited local carbon productivity gains but also adversely affected neighboring regions. Tang et al. [
33] conducted a study on Chinese industrial enterprises, found that imperative regulations have a restraining effect on enterprise TFPs, and their impact was more significant on high-pollution, small-scale enterprises. Wang et al. [
34] found that TFPs in 37 industrial sectors in China are negatively affected by atmospheric environmental regulations.
According to the available literature, there is also abundant evidence that there are three main relationships between environmental regulation and export competitiveness. First, environmental regulations reduce export competitiveness [
22,
24,
26,
27,
28]. Second, environmental regulation improves export competitiveness [
6,
35,
36]. Third, the relationship between environmental regulation and export competitiveness is uncertain [
37,
38]. Li et al. [
39] found that there is a significant U-shaped curve relationship between environmental regulation and the export competitiveness of high-tech industries in China from 2001 to 2016.
The command-type environmental regulation (CER) has less flexibility, less incentive effect on the technological innovation of enterprises, and an uncertain effect on industrial competitiveness. Economic environmental regulation (EER) has a large incentive effect on the technological innovation of enterprises and may have a positive effect on industrial competitiveness. Participatory environmental regulation (PER) has strong flexibility, and enterprises take the initiative to assume social responsibilities under pressure, which has limited incentives for technological innovation and may have uncertain effects on industrial competitiveness. Therefore, different types of environmental regulations may produce different environmental regulation performances.
From this, Hypothesis 2 of this paper is proposed:
Hypothesis 2a. CER and the international competitiveness of the high-tech industry is uncertain.
Hypothesis 2b. EER and the international competitiveness of the high-tech industry is positively correlated.
Hypothesis 2c. PER and the international competitiveness of the high-tech industry is uncertain.
For high-tech industries, the more consistent view is that the innovation ability of enterprises has a decisive impact on their competitiveness, especially their international competitiveness. An analysis by foreign scholar Pandit et al. [
40] found that there is a positive correlation between the R&D input of enterprises and the output of research and development; R&D investment can increase the company’s R&D output. The view that enterprise R&D investment can enhance the international competitiveness of enterprises has been confirmed by most scholars, the high-tech industry has the characteristics of high relevance, which is linked to many enterprises in the process of production and operation, and the application of environmental regulations will naturally have a direct or indirect impact on high-tech enterprises, so the production standards and costs of products will change, and the international competitiveness will naturally change. Businesses may consider growing by scaling up R&D input to improve the technology to produce more environmentally friendly products so as to gain the favor of consumers and meet market demand [
41]. In addition, the validity of the Porter hypothesis may be influenced by other factors [
42]. When benchmark regression found that the Porter hypothesis did not hold, He et al. [
43] added property protection as a regulatory variable and found that it has a significant regulatory effect and can promote the hypothesis to be true. When other variables are added, such as institutional pressure [
44], R&D investment, etc., it strengthens the effect of regulation on the promotion of technological innovation. Javeed et al. [
45], taking Pakistan’s manufacturing industry as the subject of the study, found that the role of environmental regulations in promoting corporate performance is strengthened after considering the degree of competition in the product market.
Based on the above mechanism analysis, Hypothesis 3 of this paper is proposed:
Hypothesis 3. The R&D investment has a moderating effect between environmental regulation and the international competitiveness of high-tech industries.